BS EN 15234-4 defines the procedures to fulfil the quality requirements (quality control) and describes measures to ensure adequate confidence that the wood chips specification for non-industrial use as described in EN 14961-4 is fulfilled (quality assurance).
BS EN 15234-4 covers the raw material supply, production and delivery chain, from purchasing of raw materials to point of delivery to the end-user.
BS EN 15234-4 covers only quality assurance for wood chips produced from the woody biomasses stated in EN 14961-1:2010, Table 1 and EN 14961-4.
BS EN 15234-4 on quality assurance for wood chips for non-industrial use is useful for:
The overall aim of BS EN 15234-4 is to guarantee the wood chips quality through the whole supply chain, from the origin and source to the delivery of the solid biofuel and provide adequate confidence that specified quality requirements are fulfilled.
The objective of BS EN 15234-4 is to serve as a tool to enable the efficient trading of wood chips. Thereby:
Quality assurance measures should establish confidence in the wood chips through systems that are simple to operate and do not cause undue bureaucracy.
EN 15234-4:2012